be動(dòng)詞、一般動(dòng)詞和助動(dòng)詞(編輯修改稿)
2025-06-10 06:01 本頁面
【文章內(nèi)容簡(jiǎn)介】 所謂助動(dòng)詞是和原形動(dòng)詞合在一起，用來表現(xiàn)時(shí)態(tài)、語態(tài)、語氣的動(dòng)詞。此外，助動(dòng)詞也能表示疑問、否定、強(qiáng)調(diào)…助動(dòng)詞的特點(diǎn)He can speak He can speaks ，主語為第三人稱單數(shù)，詞尾不加sHe cans speak ，在助動(dòng)詞后加notHe cannot speak English. 252。He doesn’t can speak English. ，將助動(dòng)詞拿到主語前Can he speak English? 252。Does he can speak English? You will can swim soon. 常見助動(dòng)詞的用法（1）can（could）Can表能力、許可、可能，而could是can的過去式（=be able to） can speak Japanese, but he cannot（=can’t）write it. will be able to（此處不能用can） finish the paper and go out to see the exhibition tomorrow. haven’t been able to recall his name.我一直想不起他的名字 cannot be true.那不可能是真的 kind of thing can happen every now and then.這種事隨時(shí)可能會(huì)發(fā)生 quarrel can sometimes cause trouble.口角有時(shí)可能引發(fā)問題 light in the sky could be a UFO.天空中的光可能是外星飛船 can e in if you have a ticket.如果你有門票就可以進(jìn)來’m afraid you can’t park your car here.恐怕你不能把車停在這兒 I leave early because I’m not well today?——Certainly.因?yàn)槲医裉觳皇娣梢栽琰c(diǎn)離開嗎？——可以 you do me a favor?你能幫我忙嗎？178。 Could you do me a favor?是更可氣的說法Could you repeat your cell phone number,please?請(qǐng)你重復(fù)一遍你的手機(jī)號(hào)碼好嗎？（2）may（might） may not chew gum in class.你不可以在課堂上嚼口香糖 I interrupt you?——sure.我可以打斷你嗎？——當(dāng)然 may be right but I am against your opinion.你可能是對(duì)的，但是我反對(duì)你的意見 might not know that you are here.她可能不知道你在這兒216。 Might可用于現(xiàn)在式或過去式，其表示的可能性較may低、祈禱 I never see a sight like that again!愿我不再看到那樣的景象 you succeed.愿你成功（3）must、命令 must return this book by next Tuesday.你必須還書在下周二之前 must not talk with your mouth full.你不可以在嘴巴有東西時(shí)說話216。 Must I really attend the meeting?我真的必須參加那場(chǎng)會(huì)議嗎？——Yes,you must.——No, you need not.——No, you don’t have to.O Must=have to（必須），但must只能用于現(xiàn)在式，其過去式用had to，未來式用will have to，完成時(shí)用have had to1. I had to go to see the doctor because I caught a cold.我必須去看醫(yī)生，因?yàn)槲腋忻傲恕痩l have to replace this light bulb.你將必須更換這燈泡 have had to stay here because it’s raining heavily outside.我們必須一直呆在這里，因?yàn)橥饷嬖谙麓笥?16。 口語中，常用have got to 代替have to’ve got to be more patient,Mary.Mary你必須更有耐心 must be kidding.你一定是在開玩笑 is an enormous animal, it must weight a ton.那是個(gè)巨大的動(dòng)物，它可能有一噸216。 表推測(cè)是的must，其否定用cannot代替 is very young. She cannot be over twenty.她非常年輕，她不會(huì)超過二十歲1. All men must die.人一定會(huì)死（4）willWill除表未來外，還有下列用法 will be downstairs now.媽媽現(xiàn)在應(yīng)該在樓下吧2. That will be his house.那應(yīng)該是他家吧 window will not open.
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